Think it's hot now? Just wait until 2030...

AUSTRALIA is up for a much warmer climate, with the average temperature in 2030 set to rise 1.3 degrees compared with the 20 years to 2005, the most rigorous analysis to date has warned.

A report from the CSIRO, analysing 40 global climate models shows the nation will be hotter and drier inland and the coast of Queensland and NSW will be hit with more intense and extreme rainfall events.

It shows high confidence that the nation could experience an average 5 degree temperature rise by 2099 that could be reined back if the global "business as usual" approach to fossil fuel burning was restricted.

The report also forecasts more hot days and warm spells for northern Australia and fewer frosts and a decline in average winter and spring rainfall for eastern Australia.

The Climate Institute chief executive officer John Connor said the report reinforced the need for Australia to drive "ambitious" climate change action in its post-2020 plans.

He said the Abbott Government should share its plans by mid-year for what happens post-2020 - after the current Direct Action plan expires - to prepare for the coming climate talks in Paris later this year.

But Finance Minister Mathias Cormann said the government's current plans were not changing, and reiterated the government's previous calls for Labor to also abandon its plans to reinstate a carbon price.

Labor's environment spokesman Mark Butler said the report was "another damning reminder" that the government was not doing enough on climate change, and the Opposition was committed to its policy - that it has not yet released.

"Dropping his ridiculous plan to pay polluters to stop polluting would see an improvement in the Prime Minister's immediate budget problems, and replacing it with a sensible climate policy would have wider economic benefits for Australia," he said.